口腔正畸治疗与颞下颌关节疾病的临床研究

目的：探析口腔正畸治疗对颞下颌关节疾病的临床影响。方法：选取采用正畸治疗的48例患者作为研究对象，依据患者Helkimo指数分为对照组33例与观察组15例，对照组均无颞颌关节症状，而观察组均存在局部症状，观察两组患者治疗过程中颞下颌关节疾病发生率，并依次在治疗前、治疗过程中与治疗后观察两组病例的关节盘移位及关节间隙线距等情况。结果：两组患者正畸治疗过程中的颞下颌关节疾病发生率具有显著差异（P<0.05）；观察组关节盘移位情况显著高于对照组（P<0.05）；治疗过程中关节盘移位情况加重，关节前间隙增加，且关节上间隙与后间隙降低。结论：正畸治疗过程中可能发生颞下颌关节疾病，而存在颞颌关节症状患者的临床风险更高，正畸治疗前需开展颞颌关节评估。

Clinical study on orthodontic treatment and temporomandibular joint disease

Objective:To discuss the clinical effects of orthodontic treatment on the temporomandibular joint disease. Methods:48 cases of orthodontic treatment patients in our hospital from December 2011 to December 2014 were selected as the study objects, and were divided into the control group of 33 cases and observation group of 15 cases according to Helkimo index. The control group had no symptoms of temporomandibular joint, while the observation group had local symptoms. The temporomandibular joint disease in the treatment of these two groups was observed, and articular disc displacement and joint space line distance and other circumstances before, during and after the treatment of these two groups were successively observed. Results:There was significant difference between the temporomandibular joint disease rates during the orthodontic treatment of these two groups ( P<0.05);the articular disc displacement situation of observation group was significantly higher than that of control group ( P<0.05);during treatment the articular disc displacement situation aggravated, the joint front gap increased, and the joint up gap and behind gap decreased. Conclusion:In the orthodontic treatment, the temporomandibular joint disease may occur, and the patients with temporomandibular joint symptoms have higher clinical risk, so we should evaluate the temporomandibular joint in the orthodontic treatment.